Additions or deletions of bases in the nucleotide sequence of a structural gene most often result in:
(A) an altered sequence of amino acids in the protein that the gene encodes
(B) insertion of a new intron into the coding sequence of the gene
(C) decreased histone binding
(D) decreased excision repair
(E) increased levels of mRNA production
Answer (2)
option a ...an altered sequence of amino acids in the protein that the gene encodes
Additions or deletions of bases in a nucleotide sequence frequently result in an altered amino acid sequence in a protein, often due to frameshift mutations. This can lead to nonfunctional proteins. Therefore, the correct answer is (A).
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